Catapult him to the moon so that it starts to scream 'Space! Space, we're in space...'

... and seriously... I'd texture it's body a little bit more to add the dirt and scratches here and there, light it up with simple setup and render against some space photos, make the eye glow a little bit in postpro, etc.

BTW, I know it may be too late for changes, but I've got only one small crit: the eye seems to be a little bit too small for me, with too wide ring around - so the body seems to be more heavy in comparison to other parts.